Append timestamp arguments to URL image
As the cache for such image should be long to have good performance on website using them, it is annoying that when changing the content of the image we have to wait for the cache invalidation.
A common technique is to append a timestamp as argument which change if the content of the image is changed. So in our case this could be the write_date
or create_date
of the image. The method get_image_url
should support and extra argument timestamp
and append it as URL argument t
.